In the spirit of her 18th birthday, Lunna's stepdad, Klauz, presents her with an unexpected gift - himself. Unwrapping the package, she discovers a large, uncut cock, her eyes widening as she realizes the surprise. Klauz, hidden but watching, grows harder as she strokes her new 'toy.' Unable to resist her touch, he joins her, pushing her onto the bed, and sliding his massive girth into her tight, wet pussy. Lunna gasps, feeling every vein as he fucks her hard, her birthday turning into a taboo-filled, unforgettable celebration.